Pigment compositions
AssigneeCiba-Geigy Corporation
InventorsJohn Andrew Stirling, Carol Jean Farnocchi, Edward James Anderson
Life of this patent
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Abstract
The present invention provides a diarylide pigment composition which contains a long chain aliphatic primary amine having 10 to 24 carbon atoms; an ethylene polyamine of the formula H.sub.2 N(CH.sub.2 CH.sub.2 NH).sub.n H where n is 1 to 5; and a propylene triamine of the formula RNH(CH.sub.2 CH.sub.2 CH.sub.2 NH).sub.2 H or RN(CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2).sub.2 where R is a long chain alkyl group having 10 to 24 carbon atoms.
Claims16
A diarylide pigment composition which contains a long chain aliphatic primary amine having 10 to 30 carbon atoms, an ethylene polyamine of the formula
- H.sub.2 N(CH.sub.2 CH.sub.2 NH).sub.n H
- where n is 1 to 5;
- and a propylene triamine of the formula
- RNH(CH.sub.2 CH.sub.2 CH.sub.2 NH).sub.2 H
- or
- RN(CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2).sub.2
- where R is a long chain alkyl group having 10 to 24 carbon atoms.
A process for the preparation of a diarylide pigment composition which contains a long chain aliphatic primary amine having 10 to 30 carbon atoms, an ethylene polyamine of the formula
- H.sub.2 N(CH.sub.2 CH.sub.2 NH).sub.n H
- where n is 1 to 5, and a propylene triamine of the formula
- RNH(CH.sub.2 CH.sub.2 CH.sub.2 NH).sub.2 H
- or
- RN(CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2).sub.2
- where R is a long chain alkyl group having 10 to 24 carbon atoms, the process which comprises adding a coupling component to the long chain aliphatic primary amine and the ethylene polyamine and then adding the propylene triamine to the pigment after coupling.
Dependencies are inferred from the claim text.